Senior Accountant in Oxford

Infleqtion is a global quantum technology company solving the world's most challenging problems. The company harnesses quantum mechanics to build and integrate quantum computers, sensors, and networks. From fundamental physics to leading edge commercial products, Infleqtion enables "quantum everywhere" through our ecosystem of devices and platforms. Our mission is to commercialise atom-based quantum products that provide orders of magnitude improvements in performance and computing applications.

Location: Infleqtion has offices in the USA, United Kingdom and Australia. This is a full-time position split between our Kidlington, Oxford office and the National Quantum Computing Centre, Harwell. Work from home permitted up to 2 days per week based on business needs and manager approval.

Role Summary: As a Senior Accountant, you will be a key member of the finance team, responsible for maintaining accurate financial records, ensuring compliance with accounting standards, and supporting the company's strategic growth. This role blends hands-on accounting with analytical insight, providing opportunities to work on complex areas such as R&D capitalization, grant accounting, and cost accounting for high-tech manufacturing. You’ll collaborate across departments — including R&D, Operations, and Commercial — to ensure financial data supports both internal decision-making and external reporting.

Requirements:

• Financial Accounting & Reporting: Manage the monthly, quarterly, and annual close process, including journal entries, reconciliations, and variance analysis. Prepare GAAP-compliant financial statements and management reports. Maintain and reconcile general ledger accounts across entities and currencies. Ensure accurate accounting for fixed assets, inventory, and capitalized R&D costs.
• Operational Support: Partner with department heads to track project costs, grants, and capital projects. Support compliance and reporting for government-funded research and development initiatives. Provide detailed analysis on cost structures, product margins, and project-level spend.
• Audit & Compliance: Coordinate and prepare audit documentation for external auditors. Ensure internal controls are designed and operating effectively. Maintain compliance with tax, grant, and statutory reporting requirements across jurisdictions.
• Process & Systems Improvement: Support ERP implementation and optimization efforts to improve automation and accuracy. Enhance accounting workflows, ensuring scalability as the company expands globally. Drive efficiency initiatives and contribute to continuous improvement projects within Finance.
• Cross-Functional Collaboration: Work closely with FP&A to provide financial insights and forecast support. Partner with procurement and operations to ensure accurate accruals and cost allocations. Collaborate with R&D teams to align financial reporting with project milestones and funding cycles.

Qualifications: Bachelor's degree in Accounting, Finance, or related field; CPA or equivalent certification strongly preferred. 4-7 years of progressive accounting experience, ideally in technology, manufacturing, or scientific R&D environments. Strong understanding of GAAP and financial reporting standards. Experience with ERP systems (e.g., NetSuite, SAP, or similar). Proficiency in Excel and strong analytical and problem-solving skills. Detail-oriented, with the ability to manage multiple priorities in a dynamic setting.

Preferred Experience: Exposure to grant accounting, government compliance, or cost accounting. Experience with multi-entity or international consolidation. Familiarity with manufacturing, research funding, or capital project accounting. Previous experience in deep-tech, hardware, or quantum technology environments.

Benefits: Competitive salary, Unlimited PTO, Generous company 10% pension contribution regardless of employee contribution, Cycle to work and Technology schemes, Incentive Stock Option Plan, BUPA Private Healthcare Insurance once probationary period is successfully completed.

Travel: Up to 10% travel may be required.

Equal Opportunity: Regardless of your interest in the quantum industry, you can take pride in the fact that Infleqtion is building an ecosystem of quantum technologies and commercial products, driving the industry towards the future. Studies reveal that while men apply for jobs when they meet an average of 60% of the requirements, women and other groups tend to apply only when they meet all the criteria. If you believe you have the potential but don't meet every single point in our job advertisement, please don't hesitate to contact us! We would love to chat with you and see how you could bring great value to our team. Our goal is to find exceptional individuals who can enrich our team culture, actively contribute, and have a genuine passion for their work. Here you have freedom to embrace your whole self: who you love, your gender identity and expression, skin colour, age, appearance, disability, neurodiversity, DNA, military/veteran status, citizenship, and other factors that make up who you are. Your uniqueness is valued, welcomed, and appreciated here. We are dedicated to providing a positive workplace and base all employment decisions on your qualifications, performance, merits, as well as business needs. We are proud to be an Equal Employment Opportunity Employer.